Revert "xterm@4.15.0-beta3 Diff:https://github.com/xtermjs/xterm.js/compare/50c5579...3a71b3f"
Revert "xterm@4.15.0-beta3 Diff:https://github.com/xtermjs/xterm.js/compare/50c5579...3a71b3f"

This reverts commit 5d3c50be2a49c14923562112840b4f00354fe3c1.

eamodio/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,eamodio/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,eamodio/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,eamodio/vscode